| 摘要 |
<p>Composite, manufactured articles in the form of plates, sheets, tubes and other shaped articles, formed by a set of uniaxially oriented isotatic polypropylene films, each showing an orientation of the crystalline phase such as to produce an X-ray scattering angle DELTA x equal to, or lower than 10 DEG , and whose resistence to delamination is of at least 0,4 Kg/cm.</p> |
